4 call the most recent caller (last call), 5 call a group (group), 6 call all ships (all ships) – NorthStar Navigation VHF Marine Radio Explorer 721US User Manual
4 call the most recent caller (last call), 5 call a group (group), 6 call all ships (all ships) | NorthStar Navigation VHF Marine Radio Explorer 721US User Manual | Page 32 / 61
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